Remove service policies from policy.v3cloudsample.json

By incorporating system-scope and default roles, we've effectively
made these policies obsolete. We can simplify what we maintain and
provide a more consistent, unified view of default service behavior by
removing them.

Change-Id: Ifa2282481ee3fc544c1d50ac8e8972b0d3a5332e
Closes-Bug: 1804462

etc/policy.v3cloudsample.json

@@ -10,12 +10,6 @@
 
     "default": "rule:admin_required",
 
-    "identity:get_service": "rule:admin_required",
-    "identity:list_services": "rule:admin_required",
-    "identity:create_service": "rule:cloud_admin",
-    "identity:update_service": "rule:cloud_admin",
-    "identity:delete_service": "rule:cloud_admin",
-
     "identity:get_limit_model": "",
     "identity:get_limit": "",
     "identity:list_limits": "",

keystone/tests/unit/test_policy.py

@@ -230,7 +230,12 @@ class PolicyJsonTestCase(unit.TestCase):
             'identity:get_domain',
             'identity:list_domains',
             'identity:update_domain',
-            'identity:delete_domain'
+            'identity:delete_domain',
+            'identity:create_service',
+            'identity:get_service',
+            'identity:list_services',
+            'identity:update_service',
+            'identity:delete_service'
         ]
         policy_keys = self._get_default_policy_rules()
         for p in removed_policies:

releasenotes/notes/bug-1804462-59ad43f98242dea0.yaml

@@ -0,0 +1,14 @@
+---
+upgrade:
+  - |
+    [`bug 1804462 <https://bugs.launchpad.net/keystone/+bug/1804462>`_]
+    The service policies defined in ``policy.v3cloudsample.json`` have
+    been removed. These policies are now obsolete after incorporating
+    system-scope into the service API and implementing default roles.
+fixes:
+  - |
+    [`bug 1804462 <https://bugs.launchpad.net/keystone/+bug/1804462>`_]
+    The service policies in ``policy.v3cloudsample.json`` policy file
+    have been removed in favor of better defaults in code. These
+    policies weren't tested exhaustively and were misleading to users
+    and operators.